Implement mounting trailer for tractors



135 R. N. GEFFRQY IMPLEMENT MOUNTING TRAILER FO-R TRACTORS Filed Jan.2e, 1955 4 Sheets-Sheet l ATTORNY @do 1935. R. N. GEFFRQY IMPLEMENTMOUNTING TRAILER FOR THACTRS Filed Jan. 26, 1935 4 Sheets-Sheet' '2lNVENTO 3.2% Geffloy ATTORNEY @ein w35. R. N. GEFFROY ESQ/35977@IMPLEMENT MOUNTING TRAILER FOR TRACTORS Filed Jan. 26, 1955 4Sheets-Sheet 3 INVENTOR Oct. 8, 1935. R. N. GEFFROY IMPLEMENT MQUNTINGTRAILER FOR TRACTORS Filed Jan. 26, 1955 4 Sheets-Sheet 4 ATTORNEYPatented oct. s, 1935 UNITED l STATES PATENT OFFICE IMPLEMENT MOUNTINGTRAILER FOR TRACTORS 27 Claims.

This invention is a continuation in part of my pending applicationSerial No. 696,681, led November 4, 1933. It relates to power drivenagricultural implements and particularly to one of a small size for useon relatively small plots of ground which are too large for hand spadingand cultivating and yet are too small to warrant the purchase of a fullsized tractor and equipl ment, or the constant up-keep drain of a horseor other draft animal.

The principal object of my invention is to provide, in connection with asingle wheel tractor, such as that shown in my Patents No. 1,807,784

and No. 1,987,676, an implement mounting and operator supportingattachment or trailer, so arranged that the operator can convenientlymanipulate the tractor and tools from his stand on the device. 'Ihetrailer is also arranged so that any desired type of tool can be readilyapplied thereto, and such tools may be easily and quickly lowered intoor raised from the ground while the tractor is in motion by a simpleeasily and quickly performed operation on the part of the operator. Alsothe trailer is connected to the tractor in such a manner that turns ofvery small radius may be easily made either when the tools are workingin the ground or when they are raised therefrom.

Also, the operator, being supported by and carried along with thedevice, does not have to walk alongside of the tractor, and as a resulthis physical energy is conserved and steering the tractor to maintainthe tools in a straight line is greatly facilitated.

The trailer is supported on wheels, and another object of the inventionis to mount the wheels so that their tread spacing may be easily alteredto suit crop row spacing and other conditions; they may also be set atdifferent transverse angles relative to the vertical plane of thetractor as the ground contour may require; and they may be independentlyadjusted vertically relative to the trailer which they support.

A further object of the invention is to produce which will beexceedingly effective for the purpose for which it is designed.

These objects I accomplish by means of such structure and relativearrangement of parts as will fully appear by a perusual of the followingspecication and claims.

In the drawings similar characters of reference indicate correspondingparts in the several views: Figure 1 is a side elevation of the completeapa simple and inexpensive device and yet one paratus with theimplements in operating Dosition.

Figure Zis a fragmentary side view of the device showing the toolsraised from the ground and the catch engaged to prevent lowering of .5

said tools. I

Figure 3 is a similar view showing the first step in the releasing ofthe catch when it is desired to lower the tools.

Figure 4 is a similar view showing the releas- 10` ing movement of thecatch.

Figure 5 is a fragmentary enlarged cross section on the line 5-5 ofFigure 3.

Figure 6 is a rear end view of the trailer. l

Figure 7 is a fragmentary top plan view of 15" the same.

Figure 8 is a fragmentary section on the' line 8-3 of Figure 6, showingthe wheel mounting.

Figure 9 is a fragmentary transverse section of the trailer platformshowing a' modied wheel- 20 substantially as shown in the aforementioned30 patents. An upwardly sloping side frame 2 is mounted on the tractorand extends across the rear side 0f the wheel. An upwardly sloping bar 3projects rearwardly from the rear end of this frame, said bar having anadjustable handle- 35 bar unit 4 of the bicycle type mounted on its rearend. The frame 2 supports another relatively low horizontal frame 5which also extends across the wheel on its rear side and which is rigidwith frame 2. 40 Turnably mounted in and extending upwardly from therear cross bar of the frame 5 is a kingpin having an upward and rearwardslope of about ve degrees to the vertical. VRigid with and projectingradially and rearwardly from the 45 pin is a frame bar 'l to the rearend of which is rigidly secured a transverselyA extending bar 8. Thisbar 8 is drilled along its length as shown in Figure 10 to receivestandard U-bolts by means of which the depending standards of variousim- 50 plements, such as cultivatorA teeth 9, may be rigidly strapped orbolted in place. Secured to and upstanding from the bar 'l adjacent thepin 6 are ears I0 between which is pivoted as at P the adjacent end of arearward- 55 ly projecting beam II, which forms the main frame of thetrailer. This beam has an initial upward and rearward sloping portion Amerging into a substantially horizontal portion B which terminates in adepending rear portion C extending down to a level near the workinglevel of the bar 1. The bar II is thus substantially in the form of along fiat arch, extending rearwardly over the bars I and 8 and theimplements carried thereby, to a point some distance rearwardly of thesame. The portion A of the beam and the adjacent end of the portion Bare directly above the bar 'I, but the major portion of the beam I I ispreferably laterally offset somewhat relative to the bar 1.

A transverse plate I2 is secured on the rear lower end of the beam IIwhich is,provided with a pair of transversely spaced horizontally alinedholes I3 and other holes I4 above the same, which are centered on arcsstruck from the opposed holes I 3, as shown in Figure l1. The plate I2serves as the supporting means for transversely extending and verticallyoverlapping and separate edge frames I5 which support separatehorizontally overlapping platforms I6. These platforms are of a sizesufficient to support the feet of an operator in a natural standingposition and who may then conveniently grasp and manipulate the handles4, which are of course above and substantially overhang the platform, asshown in Figure 1.

The frames I5 are normally secured to the holes I3 of the plate I2 byremovable bolts I'I so that the platform is mounted in a horizontalplane at right angles to the vertical plane of the tractor I. If however(as when plowing close to trees, fences or the like) it is desired toset the tractor at a transverse tilt relative to the platform, oneholding bolt II is removed, the platform and tractor are swung relativeto each other about the remaining bolt as an axis and said one bolt isthen replaced in the corresponding hole I4 of the plate I2.

Other vertically overlapping frame bars I8 are mounted on and under theedge frame I5 and platforms toward their rear end, which are alsoadjustably bolted together. These bars I8 besides bracing the platformsagainst downward deection serve as securing means for the adjacent endsof transversely extending goose neck or arch axles I9 whose outer endsterminate substantially on a level with the bottom of the bars I8. Atits outer lower end each axle has a vertical row of holes 20 toselectively receive a. bolt 2I. This bolt passes through and clamps aspindle 22 in rigid connection with the axle, the hub 23 of the wheel 24turning on the spindle, as shown in Figure 8. The inner end of thespindle is formed with a saddle 25 which sharply surrounds the axle(which is of circular form) and prevents the spindle from turning. Theholes 20 provide necessary vertical adjustment of the platform, as forinstance when working strawberries, in which case the wheels are set inthe highest position on the axles for the tools to work in the furrowsbetween rows and in the lowest position when the tools are working thecrests only.

The use of arched axles enables rows of growing crops to be straddledwithout the plants being disturbed or damaged, while maintaining theplatforms close to the ground. They may be used double as shown orsingly, in which case and referring to Figure 6, the riding platform isclosed and moved to the right until the pad I2 connects to its leftextreme. The wheel 24 is then mounted on plate 26, Figure 9, and setpointing down instead of up as shown. Due to the right-hand offset inbeam II, the left wheel 24 will then run in the middle row shown in 5Figure 6. If the use of arched axles is not required, they may beremoved and the short plates 2E may be secured to the side portions ofthe platform frames I5. These plates support the bolts 2I for clampingthe spindles 22 10 directly against the plates, as shown in Figure 9,and may be set pointing up or down as conditions warrant. For instance,when plowing, one axle is raised and the 'other lowered. Or these platesmay be removed and the spindles 15 22 with associated wheels 24 may bebolted directly to platform frames I5 of the trailer.

It will be noted from Figure 6 that both the transverse frame elementsI5 and the bars I8 are drilled with a number of equally spaced bolt 20holes throughout their length so that by removing and replacing thesecuring bolts in different holes, a great range of lateral adjustmentof the frames and consequently of the wheels may be obtained. Thisenables the structure to be 25 effectively used for all different croprow spacings and for all other working conditions. Also, since thewheels are independently adjustable, they may be set different distancesfrom the plane of the beam II if conditions should re- 30 quire suchuneven setting.

The entire trailer unit, including the implements, can swing about thepin 6 as an axis. Raising or lowering the implements from the ground isaccomplished by vertical manipulation 35 of the handle-bars 4, sincesaid bars, the tractor frame, and the implement supporting beam form arigid unit as far as vertical movement is concerned, turning on the axlea; of the tractor as an axis. With such movement of the imple- 40 ment aminimum accompanying movement of the platforms is had on account of thepivotal connection of the supporting beam II of the latter with the bar1.

In order to hold the implements clear of the'45 ground when l desiredwithout maintaining a hold-up pressure on the handles I provide thefollowing arrangement:

Rigid with and upstanding from the bar I are pieces 2'I spaced to form aslot 28 through 50 which the beam II projects just ahead of the offset,said bar being capable of a certain amount of vertical movement in theslot. A forwardly overhanging block 29 is mounted on the pieces' 21 atthe top of the slot, said block supporting 5D an adjustable set screw3l) which depends into the slot to engage the top of the beam II. Anupstanding LJ-shaped dog 3l is pivoted on and l straddles the beam IIon. the portion A, said when the beam is at its' highest position in the60 slot extending upwardly alongside the front face of the block 28, asshown in Figure l.

Said dog below its pivot and on both sides is formed with forwardlyangles laterally springy 65 extensions 32 which are provided on theirfaces nearest the bar 'I with substantially horizontal grooves 33adjacent its lower ends, said grooves extending diagonally of eachextension as shown in Figures 3 and 4. The lower edge of each 7oextension is preferably inwardly beveled as shown at R in Figure 5.

A rounded stub pin 34 is mounted in and projects from the sides of thebar 1 to initially engage said grooves adjacent their rear ends. A i"spring 35 of suitable character is associated with the dog to urge thesame against the block 29.

In operation, when the tools are engaged with the ground the beam il isthen at the top of the slot 28 or is engaged by the adjacent end of theset' screw, and the dog 3i is then in its released position and bearsagainst the forward face of the block 29, as shown in Figure 1. Thetractor can of course turn relative to the trailer about the king-pini5, the steering being effected by the operator on the platform byswinging the barl 3 to one side or the other. When it is desired toraise the tools from the ground it is only necessary for the operator tolift up on the handles 4, which causes the frame to be tilted upwardlyand likewise tilts the frame structure on which the tools are mounted.At the same time the beam H rises in substantially less proportion.

This raising of the bar 'I also raises the block 29 relative to the dog3i, so that the upper end of the latter clears the lower end of theblock and said dog is free to project under the block, as shown inFigure 2, said dog being urged to such position by the spring 35. Owingto the particular arrangement and connection of the frame members s andil relative to each other however, as well as the fact that the frame 5also swings upwardly about the axis of the tractor wheel, considerablevertical movement of the tool supporting frame takes place before theblock 29 has actually moved up the relatively small distance necessaryto clear the dog. This is on account of the fact that as the rear end ofthe frame 5 is tilted up, the pivotal point P also of course tilts' upso that as the tool supporting structure is raised te bar il is lalsoraised but to a lesser extent. It is then obvious that the toolsupporting frame is held raised and cannot be again lo-wered unless thedog is withdrawn from under its catch block.

This is accomplished in the following manner:

A further lifting movement is first imparted to the bar T through themedium of the handles, which of course also raises the bar 'i stillhigher or from the position shown in Figure 2 to that in Figure 3. Asthe bar l' thus raises it swings about the pivot P as an axis. Thiscauses the members 2l which are rigid with said bar to be tilted towardthe tractor somewhat and it engages and swings the dog 3i forwardly, andits lower extensions 32 rearwardly about the pivotal connection of saiddog with the beam Il.

This additional raising of the bar 'l and the .accompanying tilting ofthe dog extensions, as above described, brings the pins 34 up so thatbefore the bar 'l reaches its highest position, said pins engage thelower beveled edges R of the extensions 32 at the rear ends of same.With a further final raising of the bar 1, the pins spring theextensions outwardly until as said bar reaches the topmost point of itsmovement the pins snap into the grooves 33 adjacent their rear ends.Then, when the bar 3 is lowered down the pins remain and ride in thegrooves causing the dog to be swung away from the block 29, as shown inFigure 4.

By the time the pins have reached the forward ends of the grooves andleave the same, the block has been lowered to a point below the top ofthe dog, so that when the latter is released it will engage the frontface of the block instead of under the same. The tools may thus enterthe ground to the desired depth for which the implement is set and whichdepends on the setting of the screw 3l) or the vertical adjustment ofwheels 24. It will thusY be seen that withdrawing the tools from theground .and allowing the same to again re-enter the ground areaccomplished by very simple and quickly per- 5 formed operations on thepart of the driver, without it being necessary to halt the forwardmovement of the tractor.

Apart from enabling the raising and lowering of the implements to beeasily effected, the construction of the lift mechanism above describedhas another feature of advantage. When working the tractor under acomparatively heavy load, should the power wheel suddenly start slippingthe implements are not carried down deeper 15 as the power wheel digs inwith its slipping, but are left in their normal position, the wheel onlyhinging downwardly. A lift on the hande-bar corrects this situationinstantly since it lessens the original load and materially increasesthe tractive effort over the load drag.

From the foregoing description it will be readily seen that I haveproduced such a device as substantially fulfills the objects of theinvention as set forth herein.

While this speciiication sets forth in detail the present and preferredconstruction of the device, still in practice such deviations from suchdetail may be resorted to as do not form a departure from the spirit ofthe invention, as defined by the appended claims.

Having thus described my invention, what I claim as new and useful anddesire to secure by Letters Patent is:

1. In combination with a tractor, an implev ment carrying trailerpivoted on the frame of the tractor for swinging movement in ahorizontal plane, said trailer including supporting wheels, and meansmounting the wheels for angular adjustment as a unit in a verticaltransverse plane. 40

2. A structure as in claim l, with means included in part with saidmounting means for adjusting the wheels laterally.

3. In' combination with a tractor, an implement carrying trailerconnected to and disposed rearwardly of the tractor, wheels supportingthe trailer, said trailer including a longitudinally eX- tending framebeam, a transverse vertical plate secured on the rear end of the beam,said plate having vertical pairs of transversely spaced bolt holes theupper ones of which are the same distance from the opposed lower holesas the distance between said lower holes, a frame structure on which thewheels are mounted having a transverse portion abutted against theplate, and bolts removably placed through said portion and atransversely spaced pair of the holes.

4. In combination with a tractor having a rearwardly projecting frame,means mounting said frame for swinging movement in a vertical plane, animplement carrying frame projecting rearwardly from the tractor frameand mounted thereon for vertical movement therewith, a beam pivoted inunitary connection with said implement frame adjacent its forward endand projecting rearwardly thereof, and an operator supporting platformmounted on and projecting rearwardly from the beam; said implement framemounting means including a substantially vertical pivot connection aboutwhich said frame may swing.

5. In combination with a tractor having a rearwardly projectingmanipulating bar, means mounting said bar on the tractor for swingingmovement in a vertical plane, an implement carrying frame rearwardly ofthe tractor and mounted in connection with said bar to swing therewith,an operator supporting platform disposed rearwardly of said frame, therear end of said manipulating bar being above and adjacent the front endof the platform for manipulation by the operator thereon, a beam rigidwith the platform and extending forwardly in overiianging relation tothe implement frame, a tr nsverse pivot connection between said beam andthe frame adjacent the forward endl oi the latter.

6. In combination with a tractor having rearwardly projectingmanipulating bar, a transverse pivot about which said bar may swingvertically, an implement carrying frame mounted on the tractor forvertical swinging movement with the bar whereby raising oi' the bar willraise the implement frame and the implements carried thereby, a platformto support an opera'ior mountenL in connection with the implement framerearwardly thereof and from which the bar is operable, said platformbeing directly supported from the gound, a longitudinal beam rigid withthe platform and pivoted in unitary connection with-a transverse axis onthe implement frame adjacent the tractor, automatically functioningcatch nica-ns between the and the implement frame holding the latteragainst lowering movement when once raised a predetermined distance, andmeans to release said catch means unctioning with a iurther raising ofthe implement frame beyond a holding position.

7. In combination with a tractor having a rearwardly projecting frame, atransverse pivot about which said frame may swing vertically, animplement carrying frame disposed rearwardly of the tractor andincluding a lf igitudinally extending bar connected to the frame forvertical swinging movement therewith, a longitudinally extending beamabove said bar and pivoted in unitary connection therewith adjacent itsforward end, wheels supporting the beam at its rear end, a catch blockrigid with the bar and disposed above the beam, and a dog pivoted on thebeam to engage under the block when the bar has been raised a certaindistance.

S. A structure as in claim '7, with means between tlie bar and dog tomove the latter clear of the block with a raising of the bar a certaindistance beyond a catch engaging position and holding said dog in aclear position with a subsequent lowering of the bar to an amountsuincient to bring the top of the dog above the lower edge of the block.

9. A structure as in claim '7, with a pivot for the dog, a forwardlaterally springable extension rigid with the dog below the pivotadapted to overlap the side of the bar after the latter has been raisedbeyond a catch engaging position, said extension having a diagonally eX-tending groove near its lower end and in its face adjacent the bar, anda pin projecting from said bar in position to spring the extensionlaterally and snap into the groove adjacent its rear end when the barhas been additionally raised, said pin and groove being arrangedrelative to the dog pivot so that with a lowering oi the bar from saidraised position, the pin will remain in the groove and will cause thedog to swing on its pivot so as to move away from and remain clear ofthe catch block as the latter is lowered with the bar until the latterhas approached its fully lowered position.

10. In combination with a tractor having a rearwardly projectingmanipulating bar, a transverse pivot about which said bar may swingvertically, an implement carrying frame mounted on the tractor forvertical swinging movement with the oar whereby raising of the bar willraise the implement frame and the implements carried thereby, a groundsupported unit rearwardly of the implement frame, a longitudinal beamrigid with said unit and pivoted on a transverse axis on the implementframe, and releasable catch `leans between said beam and the implementframe to hold the latter against lowering movement when once swungupwardly and means acting on said catch means to release the same whenthe implement frame is raised to a further amount.

il. In combination with a tractor having a rearwardly projecting frame,a transverse pivot about which said frame may swing vertically, animplement carrying frame mounted on the tractor frame for verticalswinging movement therewith whereby raising of the tractor frame willraise the implement frame and the implement carried thereby, awheel-supported beam transversely pivoted in unitary connection with andprojecting rearwardly from the implement frame, means to thus swing andraise said frames, and means including a releasable catch device to holdthe st lowering movement when once raised a predeter ned amount.

l2. A structure as in claim ll, with means to se said device when theframes are tilted ,Jardiy a further amount.

13. In combination with a tractor, an implement carrying trailerconnected to and disposed rearwardly of the tractor, wheels supportingthe trailer, said trailer including a longitudinally extending lramebeam, a transverse member at the rear end of said frame beam and rigidtherewith, and frames on which the wheels are mounted secured to saidtransverse member for separate lateral adjustment and independently forangular vadjustment as a unit in a vertical transverse plane.

14. In combination with a tractor having a rearwardly projectingmanipulating bar, a transverse pivot about which said bar may swingvertically, an implement carrying frame mounted on the tractor forvertical swinging movement with the bar whereby raising of the bar willraise the implement frame and the implements carried thereby, a platformto support an operator mounted in connection with the implement framerearwardly thereof and from which the bar is operable, said platformbeing directly supported from the ground, a longitudinal beam rigid withthe platform and pivoted on a transverse axis in unitary connection withthe implement frame adjacent the tractor, and automatically functioningcatch means between the beam and the implement frame holding the latteragainst lowering movement when once raised a predetermined distance.

15. In combination with a single-wheel tractor having a frame,implements mounted in connection with and depending from the framebehind and alined with the wheel of the tractor, a relatively lowoperator supporting platform disposed rearwardly of and normally in linewith the wheel and implements, means pivotally mounting the platformfrom the tractor frame for relative swinging in a vertical plane, axlesrigid with and arching outwardly and upwardly from the opposite sides ofthe platform, to straddle spaced rows veo of growing crops, wheels atthe outer ends of the axles, and spindles for the wheels secured on saidaxles and vertically adjustable thereon.

16. In combination with a single-wheel tractor having a frame,implements mounted in connection with and depending from the framebehind and alined with the wheel of the tractor, a relatively lowoperator supporting platform disposed rearwardly of and normally in linewith the wheel and implements, means mounting the platform in connectionwith the tractor frame, axles rigid with and arching outwardly andupwardly from opposite sides of the platform, to straddle Aspaced rowsof growing crops, and wheels mounted on the outer ends of the axles.

17. A structure as in claim 16, with means to adjust the axles laterallywhereby to accommodate said arches to rows of different spacings.

18. In combination with a single-wheel tractor, a relatively lowimplement carrying trailer connected to and disposed rearwardly of thetractor in centralized relation therewith, transversely spaced wheels tothe sides of the trailer, said means for one wheel comprising an archedaxle rigid with and projecting outwardly from the adjacent side of thetrailer to straddle an adjacent row of growing crops, and a spindle forsaid wheel projecting outwardly from the outer end of the axle.

19. In combination with a single wheel tractor, an implement carryingtrailer connected to and disposed rearwardly of the tractor, saidtrailer including a single longitudinally extendng frame beam disposedin central alinement with the tractor, a transverse member at the rearend of said beam and rigid therewith, separate frames secured to saidtransverse member for separate lateral adjustment and wheels to thesides of and supporting said frames.

20. A structure as in claim 19, with plates forming foot-platformsmounted on the frames; said plates when the frames are disposed closetogether, overlapping each other whereby when said frames are separatedthe plates will still form a continuous platform.

21. In combination with a tractor having a frame element across its rearend, an implement mounting and operator supporting trailer attached tosaid element, said trailer including a bar extending lengthwise andcentrally of the tractor, a substantially vertical pivot member on thefront end of the bar turnably engaging said frame element, implementsupporting means iixed with the bar, and a wheel supported beamextending rearwardly of the bar from overhanging relation therewith andpivotally connected thereto for relative swinging movement in a verticalplane.

22. In combination with a tractor having a frame element across its rearend, an implement mounting and operator supporting trailer attached tosaid element, said trailer including a bar extending lengthwise andcentrally of the tractor, a substantially vertical pivot member on thefront end of the bar turnably engaging said frame element, implementsupporting means fixed with the bar, a beam extending rearwardly of thebar from overhanging relationship therewith, means pivoting the frontend of the beam in unitary connection with the bar for vertical swingingmovement relative thereto, and vertically adjustable wheels supportingthe trailer at its rear end whereby the level of the trailer at such endmay be adjusted relative to the ground independently of the implements.Y

23. In combination with a tractor having a frame element across its rearend, an implement mounting and operator supporting trailer attached tosaid element, said trailer including a bar extending lengthwise andcentrally of the tractor, a substantially vertical pivot member on thefront end of the bar turnably engaging said frame element, implementsupporting means iixed with the bar, a beam extending rearwardly of thebar from overhanging relationship therewith, means pivoting the frontend of the beam in unitary connection with the bar, the beam at its rearend being formed with a downward extension, a wheel supported platformfor'the feet of an operator mounted on and projecting rearwardly fromthe lower end of the extension whereby the operator may step from theground onto said platform, and a manipulating bar projecting rearwardlyfrom the tractor to a termination in substantially overhanging relationto the front end of the platform.

24. In combination with a tractor having a frame element across its rearend, an implement mounting and operator supporting trailer attached tosaid element, said trailer including a bar extending lengthwise andcentrally of the tractor a substantially vertical pivot member on thefront end of the bar turnably engaging said frame element, implementsupporting means xed with the bar, a beam extending rearwardly of thebar from overhanging relationship therewith, means pivoting the frontend of the beam in unitary connection with the bar, a relatively lowplatform to support the operator projecting rearwardly from and rigidwith the rear end of the beam, and vertically adjustable wheelssupporting the platform.

25. In combination with a tractor having a frame element across its rearend, an implement mounting and operator supporting trailer attached tosaid element, said trailer including a bar extending lengthwise andcentrally of the tractor, a substantially vertical pvot member on thefront end of the bar turnably engaging said frame element, implementsupporting means fixed with the bar, a beam extending rearwardly of thebar from overhanging relationship therewith, means pivoting the frontend of the beam in unitary connection with the bar, a relatively lowoperator supporting platform rigid with and projecting rearwardly fromthe rear end of the beam, and a manipulating bar projecting rearwardlyfrom the tractor to a termination substantially in overhanging relationto the front end of the platform.

25. A structure as in claim 25, with means to selectively alter thelevel of the platform relative to the ground without materiallyaffecting the relative level of the tools.

27. In combination with a tractor, an implement carrying trailerconnected to and disposed rearwardly of the tractor and including alongitudinally extending frame beam, a wheel-mounted operator supportingplatform disposed rearwardly of the beam, and means connecting theplatform and beam for relative angular adjustment in a Verticaltransverse plane.

RALPH N. GEFFROY.

